1 Here is a list of (major) changes in Qt from 0.95 to 0.96.

     2 

     3 Bug-fixes, optimizations and improved documentation, of course.

     4 QClipboard is new.

     5 

     6 There are some changes in the API (Qt header files).  Some functions have

     7 been renamed or the arguments have changed. The old versions of these

     8 functions have been obsoleted. A call to an obsoleted function will by

     9 default generate a runtime warning the first time it is called, but it

    10 will be executed correctly. If you really need to ship code fast, you can

    11 turn off the runtime obsolescence warnings by calling

    12 qSuppressObsoleteWarnings().

    13 

    14 Obsoleted functions will disappear in a future release.  To get

    15 compile-time errors for each use of an obsoleted function, compile your

    16 code with -DTEST_OBSOLETE. You should recompile without this option when

    17 you have upgraded your code (otherwise, you may get linking errors). 

    18 Note: it is probably not a good idea to compile the Qt library with

    19 -DTEST_OBSOLETE, it may cause problems if you try to link or run

    20 programs that use obsoleted functions.

    21 

    22 For new users: obsoleted functions are no longer documented, in fact they

    23 are not even visible in the documentation.

    24 

    25 *************** Changes that might affect runtime behavior *****************

    26 

    27 QFileInfo:

    28 ----------

    29   size() returns uint(previousy int), 0 if the size cannot be fetched (was -1).

    30 	Use isFile() to check.

    31 

    32 

    33 QPopupMenu

    34 ------------

    35   When a popup menu is a submenu (directly or as a subsub...menu) of a

    36   menu bar(QMenuBar), the menu bar will now always emit the activated() or

    37   highlighted() signal when a submenu emits these signals. This fix might

    38   have undesired effects if you previously have worked around it by

    39   connecting to signals both in menu bar and its submenus.

    40 

    41 *************** Changes that might generate compile errors *****************

    42 **************           when compiling old code           *****************

    43 

    44 QDataStream:

    45 -----------

    46   Serialization of int and uint is no longer supported. Use INT32 and

    47   UINT32 instead. This had to be changed in order to run Qt on 64-bit

    48   architectures.

    49 

    50 

    51 QImage:

    52 -------

    53   24-bpp pixel format no longer supported, use 32-bpp instead.

    54 

    55   This means that you have to use uint* instead of uchar* when accessing

    56   pixel values. You cannot use the uchar* pointer directly, because the

    57   pixel format depends on the byte order on the underlying platform. Use

    58   qRgb() and friends (qcolor.h) to access the pixels.

    59 

    60 

    61 QWidget:

    62 --------

    63   setMouseTracking() does not return bool. Call hasMouseTracking() to

    64   determine the mouse tracking state. (This only affects code that

    65   actually uses the return value.)

    66 

    67   (There are other changes in QWidget, see below)

    68 

    69 

    70 *************** Type changes that might generate warnings: *****************

    71 

    72 

    73 QCache/QIntCache:

    74 -----------------

    75   Using int/uint instead of long/ulong.

    76 

    77 

    78 QDate/QTime/QDateTime:

    79 ----------------------

    80   Using int/uint instead of long/ulong (MS-DOS required long).

    81 

    82 

    83 QIODevice/QBuffer/QFile:

    84 ------------------------

    85   Using int/uint instead of long/ulong.

    86 

    87 

    88 QKeyEvent:

    89 ----------

    90   ascii() now returns int (previously uchar).

    91 

    92 

    93 QTableView:

    94 ------------

    95   uint used instead of ulong (tableFlags() etc.)

    96 

    97 

    98 QTextStream:

    99 ------------

   100   int used instead of long (flags() etc.)

   101 

   102 

   103 *****************         Obsoleted functions         **********************

   104 

   105 QAccel:

   106 -------

   107   enable(), disable() and isDisabled() are obsolete.

   108   Use setEnabled(TRUE/FALSE) and !isEnabled() instead.

   109   isItemDisabled(), enableItem(), disableItem() are obsolete.

   110   Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.

   111 

   112 

   113 QApplication:

   114 -------------

   115   cursor(), setCursor() and restoreCursor() obsoleted.

   116   Use overrideCursor(), setOverrideCursor() and restoreOverrideCursor()

   117   instead.

   118 

   119 

   120 QBitmap:

   121 --------

   122   Constructor takes "const uchar *bits" instead of "const char *"

   123   because of sign problems (uchar = unsigned char). Old constructors are

   124   obsolete.

   125 

   126 

   127 QButton:

   128 --------

   129   toggleButton() is obsolete, renamed to isToggleButton().

   130 

   131 

   132 QColor:

   133 -------

   134   The functions QRED, QGREEN, QBLUE, QRGB, QGRAY obsolete.

   135   Instead, use  qRed, qGreen, qBlue, qRgb, qGray.

   136 

   137 

   138 QComboBox:

   139 ----------

   140   setStrList() obsolete, use clear() + insertStrList() instead.

   141   string() obsolete, use text() instead.

   142 

   143 

   144 QLCDNumber:

   145 ----------

   146   longValue() is obsolete, use intValue() instead.

   147 

   148 

   149 QListbox:

   150 ---------

   151   The macro LBI_String is obsolete, use LBI_text instead.

   152   string() obsolete, use text() instead.

   153   stringCopy() and setStringCopy() are obsolete.

   154 

   155 

   156 QMenuData:

   157 ----------

   158   string() obsolete, use text() instead.

   159   isItemDisabled(), enableItem(), disableItem() are obsolete.

   160   Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.

   161   checkItem() and uncheckItem() are obsolete.

   162   Use setItemChecked(TRUE/FALSE) instead.

   163 

   164 

   165 QPainter: 

   166 --------- 

   167 

   168   drawBezier() is obsolete, general Bezier curves are rarely used and

   169   cost too much. Qt will only support drawQuadBezier() (four-point

   170   Bezier) in the future.

   171 

   172 QPointArray:

   173 -----------

   174   move() is obsolete, use translate() instead.

   175   bezier() is obsolete, general Bezier curves are rarely used and

   176   cost too much. Qt will only support quadBezier() (four-point

   177   Bezier) in the future.

   178 

   179 

   180 

   181 QRect:

   182 ------

   183   move() is obsolete, use moveBy() instead.

   184   setTopLeft(), setTopRight(), setBottomLeft(), setBottomRight() and

   185   setCenter() is obsolete, use moveTopLeft(), moveTopRight(),

   186   moveBottomLeft(), moveBottomRight() and moveCenter() instead.

   187 

   188 

   189 QRegion:

   190 -------

   191   move() is obsolete, use translate() instead.

   192 

   193 

   194 QSocketNotifier:

   195 ----------------

   196   enabled() is obsolete. Use isEnabled() instead.

   197 

   198 

   199 QWidget:

   200 --------

   201   enable(), disable() and isDisabled() are obsolete.

   202   Use setEnabled(TRUE/FALSE) and !isEnabled() instead.

   203 

   204   setMinimumSize(), setMaximumSize(), minimumSize(), maximumSize() are obsolete

   205   use setMinSize(), setMaxSize(), minSize(), maxSize() instead.

   206 

   207   enableUpdates() obsolete, use isUpdatesEnabled()/setUpdatesEnabled().

   208 

   209   id() is obsolete, it has been renamed to winId().

   210 

   211 ***************** All other changes from 0.95 to 0.96 **********************

   212 

   213 moc

   214 ----------

   215     Gives a warning if no output is generated.

   216 

   217 

   218 qglobal.h:

   219 ----------

   220   INT32 and UINT32 typedefs changed to work with DEC Alpha.

   221 

   222 

   223 QApplication:

   224 -------------

   225   clipboard() is new.

   226 

   227 

   228 QButtonGroup:

   229 -------------

   230   Exclusive group setting added (isExclusive and setExclusive).

   231   find() is new.

   232 

   233 

   234 QColor:

   235 -------

   236   New type QRgb (uint), used for RGB triplet.

   237 

   238 

   239 QLineEdit:

   240 ----------

   241   You can now mark text, and copy and paste to/from the clipboard.

   242 

   243 

   244 QPaintDevice:

   245 ---------

   246   The bitblt function now takes an ignoreMask parameter. It has a default

   247   value, so no old code will be broken.

   248 

   249 QPrinter:

   250 ------------

   251   fixed minor bugs in handling of polygons and beziers.

   252 

   253 

   254 QWidget:

   255 --------

   256   New protected virtual functions styleChange(), backgroundColorChange(),

   257   backgroundPixmapChange(), paletteChange() and fontChange().

   258   These functions are called from setStyle(), setBackgroundColor() etc.

   259   You can reimplement them to if you need to know when widget properties

   260   changed and to optimize updates.

   261 

   262   The destroyed() signal has been moved to QObject.

   263